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Thread: Using PIC oscillator output to drive divider?
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face BY : David VanHorn email (remove spam text)



>You might want to allow for some resistors to prevent overdriving the next
>stage, too.


And an application for an international broadcasting licence, unless you
pay careful attention to ground. A short, low Z path between the chips will
be essential.
I'd put series Rs in the clock lines, about 100 ohms, but not becuase of
any "overdrive" mythology.. (how do you propose to "overdrive" a cmos
input, with a signal that runs from ground to VCC?)

The series R changes the waveform to trapezoidal, and keeps EMI down.
Hard edges will get you hard EMI problems.

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Subject (change) Using PIC oscillator output to drive divider?

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